Question
Question: Viviparous germination is found in A. Hydrophytes B. Xerophytes C. Halophytes D. Mesophytes...
Viviparous germination is found in
A. Hydrophytes
B. Xerophytes
C. Halophytes
D. Mesophytes
Solution
Hint: In viviparous germination seeds or embryos begin to germinate and develop before they detach from the parent.
Complete answer:
In mangroves, viviparous germination is seen in many species of plants growing there. In some species germinated seedlings are dispersed by water currents when they drop into the water, In other species, seedlings develop a heavy taproot and when they drop, this taproot penetrates the mud and the seedling is planted there. This is not to be confused with vegetative reproduction since the seedling is a product of sexual reproduction.
Additional information:
- Hydrophytes: These plants live in water or soil that is completely saturated with water and adapt to their surroundings. They are classified into floating plants, deep water plants, marginal plants, and oxygen generating plants.
- Xerophytes: These plants are adapted to live in areas with minimal to almost none liquid water. They have mechanisms to store water and prevent water loss.
- Halophytes: These are plants that are tolerant to high levels of salt and that grow in soil or water of high salinity.
- Mesophytes: These plants can neither adapt to excessive water nor thrive in low water availability. They require a moderately hot climate with a will porous soil that provides a dry-wet environment.
So the correct answer is, Halophytes.
Note: In some trees like jackfruit, citrus, and avocado, the seeds can be found germinating while the fruit becomes overripe. This condition cannot be described as vivipary because the moist and humid conditions provided by the fruit mimic a wet soil which encourages germination.